C3132121111331312113313331333133313331311332113313331323223313121311   >>    C313212111133131211331333133313331333131133211331333132322331312131   <<    C3132121111331312113313331333133313331311332113313331323223313121313   >>      C3132121111331312113313331333133313331311332113313331323223313121312   >>